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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Statement Of Cash Flows [Abstract]    
Net Cash Provided by (Used in) Operating Activities $ (124) $ 1,034
Cash Flows Used in Investing Activities:    
Expenditures for property, plant and equipment (1,518) (1,000)
Proceeds from sale of other assets 11 40
Net Cash Used in Investing Activities (1,507) (960)
Cash Flows Used in Financing Activities:    
Payments on long-term debt (16) (17)
Net Cash Used in Financing Activities (16) (17)
Net Increase (Decrease) in Cash and Cash Equivalents (1,647) 57
Cash and Cash Equivalents Beginning of Period 9,962 11,184
Cash and Cash Equivalents End of Period 8,315 11,241
Cash Paid (Received) for:    
Interest 7 (1)
Income taxes 2 308
Non-cash investing and financing activities:    
Right-of-use assets obtained in exchange for lease liabilities $ 35 $ 691